IT1050544B - Feedback equaliser in receiver - is for multiple level digital phase modulated or amplitude and phase modulated signal - Google Patents

Feedback equaliser in receiver - is for multiple level digital phase modulated or amplitude and phase modulated signal

Info

Publication number
IT1050544B
IT1050544B IT6785075A IT6785075A IT1050544B IT 1050544 B IT1050544 B IT 1050544B IT 6785075 A IT6785075 A IT 6785075A IT 6785075 A IT6785075 A IT 6785075A IT 1050544 B IT1050544 B IT 1050544B
Authority
IT
Italy
Prior art keywords
phase modulated
receiver
amplitude
multiple level
level digital
Prior art date
Application number
IT6785075A
Other languages
Italian (it)
Inventor
G Tamburelli
Original Assignee
Cselt Centro Studi Lab Telecom
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT6785075A priority Critical patent/IT1050544B/en
Priority to DE2544124A priority patent/DE2544124C3/en
Priority to GB40685/75A priority patent/GB1523449A/en
Priority to US05/620,140 priority patent/US4029903A/en
Application granted granted Critical
Publication of IT1050544B publication Critical patent/IT1050544B/en

Links

Abstract

The receiver signals are split in two quadrature carriers. Elimination of distortions connected with signal components on both carriers is done on the basis of a decision taken by a decision circuit which directly recognises the signal phase characteristic angle and delivers sine and cosine functions of this angle as signals which separately carry out for both quadrature components the elimination of distortions connected with signal components on both carriers. The levels of the phase and quadrature components are passed to a multiplexer.
IT6785075A 1974-10-04 1975-04-02 Feedback equaliser in receiver - is for multiple level digital phase modulated or amplitude and phase modulated signal IT1050544B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT6785075A IT1050544B (en) 1975-04-02 1975-04-02 Feedback equaliser in receiver - is for multiple level digital phase modulated or amplitude and phase modulated signal
DE2544124A DE2544124C3 (en) 1974-10-04 1975-10-02 Feedback equalizer
GB40685/75A GB1523449A (en) 1974-10-04 1975-10-03 Feedback equalizers
US05/620,140 US4029903A (en) 1974-10-04 1975-10-06 Receiver for PSK digital signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6785075A IT1050544B (en) 1975-04-02 1975-04-02 Feedback equaliser in receiver - is for multiple level digital phase modulated or amplitude and phase modulated signal

Publications (1)

Publication Number Publication Date
IT1050544B true IT1050544B (en) 1981-03-10

Family

ID=11305767

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6785075A IT1050544B (en) 1974-10-04 1975-04-02 Feedback equaliser in receiver - is for multiple level digital phase modulated or amplitude and phase modulated signal

Country Status (1)

Country Link
IT (1) IT1050544B (en)

Similar Documents

Publication Publication Date Title
ATE183869T1 (en) PSK RECEIVER
CA2044252A1 (en) Digital demodulator
JPS5222867A (en) Demodulation system for angle modulated wave signal
GB1079928A (en) A data transmission system
AU553583B2 (en) D/a converter
IT1050544B (en) Feedback equaliser in receiver - is for multiple level digital phase modulated or amplitude and phase modulated signal
KR860000780A (en) Color signal processing device
Norgaard The phase-shift method of single-sideband signal reception
ES457535A1 (en) Compatible am stereo broadcast system including transmitter and receiver
ES8303845A1 (en) Digital signal demodulator and a colour television receiver or system comprising such a demodulator.
ES284699A1 (en) A multiplex decoder circuit (Machine-translation by Google Translate, not legally binding)
GB913089A (en) Improvements in or relating to multi-channel electric wave signalling systems
JPS5412509A (en) Eliminating system for interference distortion caused in modulation signal by mutual interference of fm wave signals
FR2472878B1 (en)
JPS53131815A (en) Phase linear type emphasizer
JPS57103455A (en) Receiving system eliminating disturbing wave
JPS5381008A (en) Multiplex transmission system
KR950010442A (en) Transmission system
FR2285761A1 (en) Data transmission by amplitude modulated single sideband signal - involves circuit which is used for carrier phase adjustment
JPS5412610A (en) Modulation system for binary ami code
FR1366471A (en) Receiver for signals modulated either in amplitude or in frequency, with tuning indicator
FR2393477A1 (en) QAM data signal subject to rapid automatic smoothing - has two pulse responses derived from coherent demodulation of pulse with gating and delay lines
JPS5550758A (en) Multiplex signal demodulator
SE8800430D0 (en) LOUDSPEAKER HAVING OPEN-FILTER FRAME OF CONTINUOUS V V SHAPE IN CROSS SECTION AND WAVE MODULATION PLATE OF SAME DESIGN
GB894922A (en) Improvements relating to stereophonic sound transmission systems

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19930405